[Bug c++/55643] [4.7/4.8 Regression] [C++11] incorrect "warning: variable ‘myVar’ set but not used" with an "enum class"-typed variable is casted to double for the use

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55643



--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-11 
19:06:23 UTC ---

Author: jakub

Date: Tue Dec 11 19:06:19 2012

New Revision: 194416



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194416

Log:

    PR c++/55643

    * expr.c (mark_exp_read): Handle FLOAT_EXPR similarly to NOP_EXPR.



    * g++.dg/warn/Wunused-var-19.C: New test.



Added:

    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/warn/Wunused-var-19.C

Modified:

    branches/gcc-4_7-branch/gcc/cp/ChangeLog

    branches/gcc-4_7-branch/gcc/cp/expr.c

    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog